Self-lubricating mower cutter head assembly structure

Abstract

The utility model discloses a self-lubricating mowing machine cutterhead assembly structure, which relates to the field of mowing machines and comprises a cutterhead shell, a motor shell is fixedly mounted at the top of the cutterhead shell, a servo motor body is arranged in the motor shell, a rotating rod is fixedly mounted on an output shaft of the servo motor body through a coupler, and the output shaft of the servo motor body is connected with the rotating rod. The bottom of the rotating rod is fixedly connected with a storage box; a supporting pad is fixedly mounted at the bottom of the storage box, and a mounting disc is fixedly connected to the bottom of the supporting pad. According to the self-lubricating mowing machine cutter head assembly structure, the servo motor body is arranged, mowing work is conveniently achieved, the micro hydraulic cylinder body, the sealing gasket, the oil outlet groove and the groove are arranged, the self-lubricating effect of the mowing machine cutter head assembly structure is conveniently achieved, and the service life of the cutter head assembly structure is prolonged; and a sealing plug, a baffle and a spring are arranged, so that the lubricating liquid is conveniently added, and the sealing performance of the storage box is also ensured.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, specifically to a self-lubricating lawnmower blade assembly structure. Background Technology

[0002] As an important tool in garden maintenance, the performance and service life of lawnmowers directly affect the efficiency and cost of garden maintenance. In the use of lawnmowers, the blade assembly structure is the core component. When using existing lawnmower blade assembly structures, due to the mucus flowing out after the grass is cut during the cutting process, it adheres to the blade assembly, which greatly reduces the sharpness of the blade assembly surface.

[0003] To overcome the aforementioned defects, existing technology (Chinese patent application number: 202420913701.3, application date: April 29, 2024) discloses a lawnmower blade assembly, including a blade body and a connecting post disposed at the center of the blade body. Several blade body scraping frames are movably engaged on the connecting post. Each blade body scraping frame includes a limiting roller that is movably engaged on the connecting post and an upper contact frame with one end disposed on the outer wall of the limiting roller. A lower contact frame is disposed on the other end of the upper contact frame. A torsion device is provided between the ends of the upper and lower contact frames. After the blade body is contaminated with deposits, the blade body scraping frame is pressed down and the lower contact frame is pulled open, so that the lower and upper contact frames cover the blade body under the action of the torsion device. The rotating blade body scrapes away the deposits on the surface of the blade body.

[0004] Although existing technology can solve the problem of scraping and removing deposits from the surface of the cutter head, the cutter head assembly structure does not have a self-lubricating effect, which increases the frictional resistance between the cutter head, connecting columns and other components. The increased frictional resistance not only increases the energy consumption of the lawnmower, but also accelerates the wear of the cutter head, thereby shortening its service life and requiring more frequent cutter head replacements.

[0005] Therefore, we proposed a self-lubricating lawnmower blade assembly structure that can effectively solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a self-lubricating lawnmower cutter disc assembly structure to solve the problem mentioned in the background art that the current lawnmower cutter disc assembly structure does not have a self-lubricating effect, which increases the frictional resistance between the cutter disc body, connecting column and other components. The increased frictional resistance not only increases the energy consumption of the lawnmower, but also accelerates the wear of the cutter disc body, thereby shortening its service life and requiring more frequent cutter disc replacement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating lawnmower blade assembly structure, comprising a blade housing, a motor housing fixedly mounted on the top of the blade housing, a servo motor body disposed inside the motor housing, a rotating rod fixedly mounted on the output shaft of the servo motor body via a coupling, a storage box fixedly connected to the bottom of the rotating rod; a support pad fixedly mounted on the bottom of the storage box, and a mounting plate fixedly connected to the bottom of the support pad, a blade body movably connected to the bottom of the mounting plate, six bolts threadedly connected to the inside of the blade body, a blade shaft fixedly mounted on the bottom of the blade body, and four blades fixedly connected to the outer wall of the blade shaft; an oil outlet groove is provided at the bottom of the storage box, and a piston assembly for oil outlet is disposed inside the oil outlet groove, the piston assembly including a sealing gasket.

[0008] As a preferred technical solution of this application, a sealing ball is fixedly installed on the top of the sealing gasket, a piston rod is fixedly connected to the bottom of the sealing ball, and the end of the piston rod passes through the storage box. A first connecting plate is fixedly installed on the left side of the piston rod, a guide rod is movably connected inside the first connecting plate, and a storage box is fixedly connected to the top of the guide rod. An electromagnetic reciprocator body is provided at the bottom right side of the storage box, a second connecting plate is fixedly installed at the output end of the electromagnetic reciprocator body, and the piston rod is fixedly connected to the left side of the second connecting plate.

[0009] As a preferred technical solution of this application, a sealing plug is movably connected to the left side of the top of the storage box, a baffle is fixedly installed on the left side of the sealing plug, a fixing rod is movably connected to the upper and lower sides of the baffle, and the storage box is fixedly connected to the right side of the fixing rod, and a spring is connected to the outer wall of the right side of the fixing rod.

[0010] As a preferred technical solution of this application, the cutter shaft rod has a groove inside, and a sponge core is movably connected inside the groove, with the top of the sponge core penetrating the mounting plate.

[0011] As a preferred technical solution of this application, the sponge core and the groove are detachably connected. The groove is set as a cross-shaped structure. After the sponge core absorbs more lubricant, the excess lubricant flows through the groove to the surface of the blade.

[0012] As a preferred technical solution of this application, the piston rod is movably connected to the storage tank, and the piston rod and the sealing gasket are tightly fitted to the sealing ball. The sealing gasket is set as a circular structure. The piston rod rises and drives the sealing ball and the sealing gasket connected to it to move upward until the sealing gasket is separated from the oil outlet groove.

[0013] As a preferred technical solution of this application, the second connecting plate is driven by the electromagnetic reciprocator body. The second connecting plate and the first connecting plate are fixedly connected to the piston rod. Both the second connecting plate and the first connecting plate have several through holes. The output end of the electromagnetic reciprocator body pushes the second connecting plate to move upward, so that the second connecting plate drives the piston rod to move upward in the storage box.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This self-lubricating lawnmower blade assembly structure, by incorporating a servo motor body, facilitates lawnmowing operations. Furthermore, the inclusion of an electromagnetic reciprocator body, sealing gasket, oil outlet groove, and recess enables the lawnmower blade assembly structure to achieve a self-lubricating effect, extending its service life. Additionally, the inclusion of a sealing plug, baffle, and spring facilitates convenient addition of lubricant and ensures the sealing of the storage tank. Specific details are as follows:

[0015] 1. A servo motor body is set up. The output shaft of the servo motor body drives the storage box connected to the rotating rod to rotate. The rotation of the storage box further drives the mounting plate, the blade body, the blade shaft rod and the connected blades to rotate, so as to realize the grass cutting work.

[0016] Furthermore, an electromagnetic reciprocator body, a sealing gasket, an oil outlet groove, and a recess are provided. The electromagnetic reciprocator body pushes the piston rod connected to the second connecting plate to move upward, which in turn drives the sealing ball and sealing gasket to move upward and separate from the oil outlet groove. This allows the lubricating fluid to drip into the sponge core through the oil outlet groove and through hole, and then flow to the surface of the blade in conjunction with the recess. This achieves a self-lubricating effect for the lawnmower cutter head assembly structure, extending the service life of the cutter head assembly structure.

[0017] 2. A sealing plug, baffle, and spring are provided. The sealing plug drives the baffle connected to it to slide outward on the corresponding fixed rod and move out of the storage tank. The spring force drives the sealing plug to reset, which realizes convenient addition of lubricant and also ensures the sealing of the storage tank. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the cutter head shell and storage box of this utility model;

[0020] Figure 3 This is an exploded structural diagram of the storage box, mounting plate, and cutter head body of this utility model;

[0021] Figure 4 This is a partial structural diagram of the storage box and mounting plate of this utility model;

[0022] Figure 5This is a partial structural diagram of the cutter shaft and blade of this utility model;

[0023] Figure 6 This is a partial bottom view of the piston rod structure of this utility model;

[0024] Figure 7 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Cutter head housing; 2. Motor housing; 3. Servo motor body; 4. Rotating rod; 5. Storage box; 6. Mounting plate; 7. Cutter head body; 8. Bolt; 9. Cutter shaft rod; 10. Blade; 11. Groove; 12. Sponge core; 13. Oil outlet groove; 14. Sealing gasket; 15. Sealing ball; 16. Piston rod; 17. First connecting plate; 18. Guide rod; 19. Electromagnetic reciprocator body; 20. Second connecting plate; 21. Sealing plug; 22. Baffle; 23. Fixing rod; 24. Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-7 The present invention provides the following technical solution:

[0028] Example 1: To address the issue that existing lawnmower cutter disc assemblies on the market lack self-lubrication, leading to increased friction between the cutter disc body, connecting columns, and other components. This increased friction not only increases the lawnmower's energy consumption but also accelerates cutter disc wear, shortening its lifespan and necessitating more frequent cutter disc replacements. This example discloses a self-lubricating lawnmower cutter disc assembly structure, the following technical details of which can be found in the attached document. Figure 1 -Appendix Figure 6The system includes a cutter head housing 1, a motor housing 2 fixedly mounted on the top of the cutter head housing 1, a servo motor body 3 inside the motor housing 2, a rotating rod 4 fixedly mounted on the output shaft of the servo motor body 3 via a coupling, and a storage box 5 fixedly connected to the bottom of the rotating rod 4; a support pad fixedly mounted on the bottom of the storage box 5, and a mounting plate 6 fixedly connected to the bottom of the support pad; a cutter head body 7 movably connected to the bottom of the mounting plate 6; six bolts 8 threadedly connected inside the cutter head body 7; a cutter shaft rod 9 fixedly mounted on the bottom of the cutter head body 7; four blades 10 fixedly connected to the outer wall of the cutter shaft rod 9; an oil outlet groove 13 is provided at the bottom of the storage box 5, and a piston assembly for oil outlet is provided inside the oil outlet groove 13, including a sealing gasket 14; a sealing ball 15 fixedly mounted on the top of the sealing gasket 14; a piston rod 16 fixedly connected to the bottom of the sealing ball 15, and the end of the piston rod 16 penetrates the storage box 5; a first connecting plate 17 is fixedly mounted on the left side of the piston rod 16. The internal part of the first connecting plate 17 is connected to a guide rod 18, and the top of the guide rod 18 is fixedly connected to a storage box 5. The bottom right side of the storage box 5 is provided with an electromagnetic reciprocator body 19. The output end of the electromagnetic reciprocator body 19 is fixedly installed with a second connecting plate 20. The left side of the second connecting plate 20 is fixedly connected to a piston rod 16. The inside of the cutter shaft rod 9 is provided with a groove 11. The inside of the groove 11 is movably connected to a sponge core 12, and the top of the sponge core 12 passes through the mounting plate 6. The sponge core 12 and the groove 11 are detachably connected. The groove 11 is set with a cross-shaped structure. The piston rod 16 is movably connected to the storage box 5. The piston rod 16 and the sealing gasket 14 are tightly fitted with the sealing ball 15. The sealing gasket 14 is set with a circular structure. The second connecting plate 20 is driven by the electromagnetic reciprocator body 19. The second connecting plate 20 and the first connecting plate 17 are fixedly connected to the piston rod 16. The inside of the second connecting plate 20 and the first connecting plate 17 is provided with several through holes.

[0029] The servo motor 3 is activated by the external control board, causing its output shaft to rotate the storage box 5 connected to the rotating rod 4. This rotation of the storage box 5 further rotates the mounting plate 6, the cutter head 7, the cutter shaft 9, and the connected blades 10, thus achieving the mowing operation. During the mowing process, the electromagnetic reciprocator 19 is connected to the external control board via a timed control system. The external control board activates the electromagnetic reciprocator 19 at preset intervals, causing its output to push the second connecting plate 20 upwards. This, in turn, causes the piston rod 16 to move upwards within the storage box 5. As the piston rod 16 moves, it drives the first connecting plate 17 to move on the guide rod 18, increasing the stability of the piston rod 16's movement. As the piston rod 16 rises, it drives the sealing ball 15 and its connected sealing gasket 14 to move upwards until the sealing gasket 14 disengages from the oil outlet groove 13. This allows the lubricating fluid in the storage tank 5 to drip into the sponge core 12 through the oil outlet groove 13 and the through hole. After the sponge core 12 absorbs a large amount of lubricating fluid, the excess lubricating fluid flows through the groove 11 to the surface of the blade 10. Thus, the blade 10 maintains a certain level of lubrication on its surface during the rotating grass-cutting process, achieving a self-lubricating effect in the grass-cutting blade assembly structure and extending the service life of the blade assembly structure.

[0030] Example 2: The self-lubricating lawnmower blade assembly structure in this example discloses the following technical details, facilitating convenient addition of lubricant. Please refer to the attached document. Figure 1 -Appendix Figure 4 and attached Figure 7 A sealing plug 21 is movably connected to the left side of the top of the storage box 5. A baffle 22 is fixedly installed on the left side of the sealing plug 21. A fixing rod 23 is movably connected to the inside of the upper and lower sides of the baffle 22. The storage box 5 is fixedly connected to the right side of the fixing rod 23. A spring 24 is connected to the outer wall of the right side of the fixing rod 23.

[0031] By pulling the sealing plug 21 outward, the sealing plug 21 causes the baffle 22 connected to it to slide outward on the corresponding fixed rod 23. At the same time, the spring 24 connected to the baffle 22 is stretched. As the sealing plug 21 is completely disengaged, the filling port of the storage tank 5 is exposed. The staff adds lubricant to the storage tank 5. After adding an appropriate amount of lubricant, the staff manually reinserts the sealing plug 21 into the corresponding position of the storage tank 5. Then, the baffle 22 is released, and the rebound force of the spring 24 pushes the baffle 22 to move inward on the fixed rod 23. The inward movement of the baffle 22 further drives the sealing plug 21 to be inserted until the sealing plug 21 tightly seals the filling port of the storage tank 5, realizing convenient addition of lubricant and ensuring the sealing of the storage tank 5.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-lubricating lawnmower blade assembly structure, comprising a blade shell (1), a motor shell (2) fixedly installed on the top of the blade shell (1), a servo motor body (3) disposed inside the motor shell (2), a rotating rod (4) fixedly installed on the output shaft of the servo motor body (3) through a coupling, and a storage box (5) fixedly connected to the bottom of the rotating rod (4). Its features are: The storage box (5) is fixedly installed with a support pad, and the bottom of the support pad is fixedly connected with a mounting plate (6). The bottom of the mounting plate (6) is movably connected with a cutter head body (7). The cutter head body (7) is internally threaded with six bolts (8). The bottom of the cutter head body (7) is fixedly installed with a cutter shaft rod (9). The outer wall of the cutter shaft rod (9) is fixedly connected with four blades (10). The storage tank (5) has an oil outlet groove (13) at the bottom. Inside the oil outlet groove (13) is a piston assembly for discharging oil. The piston assembly includes a sealing gasket (14).

2. The structure of a self-lubricating lawnmower blade assembly according to claim 1, characterized in that: A sealing ball (15) is fixedly installed on the top of the sealing gasket (14), and a piston rod (16) is fixedly connected to the bottom of the sealing ball (15). The end of the piston rod (16) passes through the storage box (5). A first connecting plate (17) is fixedly installed on the left side of the piston rod (16). A guide rod (18) is movably connected inside the first connecting plate (17), and a storage box (5) is fixedly connected to the top of the guide rod (18). An electromagnetic reciprocator body (19) is provided at the bottom right side of the storage box (5). A second connecting plate (20) is fixedly installed at the output end of the electromagnetic reciprocator body (19), and the piston rod (16) is fixedly connected to the left side of the second connecting plate (20).

3. The structure of a self-lubricating lawnmower blade assembly according to claim 2, characterized in that: A sealing plug (21) is movably connected to the left side of the top of the storage box (5). A baffle (22) is fixedly installed on the left side of the sealing plug (21). A fixing rod (23) is movably connected to the inside of the upper and lower sides of the baffle (22). The storage box (5) is fixedly connected to the right side of the fixing rod (23). A spring (24) is connected to the outer wall of the right side of the fixing rod (23).

4. The structure of a self-lubricating lawnmower blade assembly according to claim 1, characterized in that: The cutter shaft (9) has a groove (11) inside, and a sponge core (12) is movably connected inside the groove (11), with the top of the sponge core (12) penetrating the mounting plate (6).

5. The structure of a self-lubricating lawnmower blade assembly according to claim 4, characterized in that: The sponge core (12) and the groove (11) are detachably connected, and the groove (11) is configured as a cross-shaped structure.

6. The structure of a self-lubricating lawnmower blade assembly according to claim 2, characterized in that: The piston rod (16) is movably connected to the storage box (5), and the piston rod (16) and the sealing gasket (14) are tightly fitted to the sealing ball (15), and the sealing gasket (14) is set as a circular structure.

7. The structure of a self-lubricating lawnmower blade assembly according to claim 2, characterized in that: The second connecting plate (20) is driven by the electromagnetic reciprocator body (19). The second connecting plate (20) and the first connecting plate (17) are fixedly connected to the piston rod (16), and the interior of the second connecting plate (20) and the first connecting plate (17) are provided with several through holes.

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